Information Code and Spread Spectrum Code Blind Estimation for CDMA System Based on Blind Source Separation
Zhao De-fang · Video Engineering · 2010
An algorithm on information code and pseudo-code estimation based on Blind Source Separation(BSS) technology is presented for the issue of multi-user blind detection of CDMA system.In the process of multi-user detection about CDMA system,the algorithm does not need to know the user's spread spectrum code.While the spread spectrum code sequences can be blindly estimated using the criterion of Minimum Mean Square Error(MMSE).Simulation results verify the above point of view,and the algorithm has great practical value.